Electronic Device

This application claims the priority benefit of China application serial no. 202411222679.9, filed on Sep. 2, 2024. The entirety of the above-mentioned patent application is hereby incorporated by reference herein and made a part of this specification.

The disclosure relates to an electronic device, and in particular to a display device.

In order to reduce the reflection of light by a circuit layer in an electronic device, the prior art involves attaching a circular polarizer onto an outer surface of a substrate of the electronic device to reduce the reflectivity of the light. However, the arrangement of the circular polarizer affects the light emitted by the electronic units in the electronic device, so that the electronic device of the prior art has relatively poor light extraction efficiency.

Some embodiments of the disclosure are directed to an electronic device that may improve light extraction efficiency.

An electronic device provided according to some embodiments of the disclosure includes a first substrate, a circuit layer, a plurality of electronic units, and a circular polarizer. The first substrate has a first surface. The circuit layer is disposed on the first surface. The plurality of electronic units are disposed on the first surface and electrically connected to the circuit layer. The circular polarizer includes a phase retardation film and a linear polarizing film disposed on the phase retardation film, and the linear polarizing film includes a functional region and a redundant region. In a normal direction of the first surface, the redundant region is overlapped with the plurality of electronic units, and the functional region is overlapped with an area of the first substrate not covered by the plurality of electronic units.

Accordingly, the linear polarizing film in the circular polarizer included in the electronic device provided by the disclosure has the functional region and the redundant region, wherein the functional region is overlapped with the area not covered by the plurality of electronic units, and the redundant region is overlapped with the plurality of electronic units. Via the arrangement of the circular polarizer, the functional region is not overlapped with the plurality of electronic units. Therefore, the light extraction efficiency of the electronic device of the disclosure may be improved, and the reflection of light by the circuit layer may be reduced.

In order to make the aforementioned features and advantages of the disclosure more comprehensible, embodiments accompanied with figures are described in detail below.

Reference will now be made in detail to the exemplary embodiments of the disclosure, and examples of the exemplary embodiments are illustrated in the accompanying drawings. Wherever possible, the same reference numerals are used in the figures and the descriptions to refer to the same or similar portions.

The disclosure may be understood by referring to the following detailed description in combination with the accompanying drawings. It should be noted that in order to make it easy for readers to understand and for the simplicity of the drawings, many of the drawings in the disclosure depict portions of the electronic device, and certain elements in the drawings are not drawn to actual scale. In addition, the number and the size of elements in the figures are for illustration and are not intended to limit the scope of the disclosure.

Throughout the disclosure, certain words are used to refer to specific elements in the specification and the claims. Those skilled in the art should understand that electronic device manufacturers may refer to the same elements by different names. The specification does not intend to distinguish between elements having the same function but different names. In the specification below and the claims, words such as “include”, “contain”, and “have” are open-ended words, so they should be interpreted to mean “containing but not limited to . . . ” Therefore, when the terms “include”, “contain”, and/or “have” are used in the specification of the disclosure, they specify the presence of the corresponding features, areas, steps, operations, and/or members. However, the presence of one or a plurality of corresponding features, areas, steps, operations, and/or members is not excluded.

The directional terms mentioned herein, such as “upper”, “lower”, “front”, “rear”, “left”, “right”, etc., refer to the directions of the drawings. Accordingly, the directional terms used are illustrative, not limiting, of the disclosure. In the drawings, each drawing depicts general features of methods, structures, and/or materials used in specific embodiments. However, the drawings should not be interpreted as defining or limiting the scope or the nature encompassed by the embodiments. For example, the relative sizes, thicknesses, and locations of various layers, regions, and/or structures may be reduced or exaggerated for clarity.

When a corresponding member (such as a layer or an area) is referred to as being “on another member”, it may be directly on the another member, or other members may be present between the two members. Moreover, when a member is referred to as being “directly on another member”, there are no intervening members between the two members unless otherwise stated in the specification. In addition, when a member is referred to as “on another member”, the two members have a top-down relationship in the top view direction, and the member may be above or below the another member, and the relationship depends on the orientation of the device.

The terms “equal to” or “the same”, “substantially”, or “essentially” are generally interpreted as within 20% of the given value or range, or interpreted as within 10%, 5%, 3%, 2%, 1%, or 0.5% of a given value or range.

Words such as “first” and “second” used in the specification and the claims are used to modify elements, which do not themselves imply and represent that the (or these) elements have any previous ordinal numbers, nor do they imply an order of a certain element with another element, or an order in manufacturing methods. These ordinal numbers are used to clearly distinguish an element having a certain designation from another element having the same designation. The same wording may be not used in the claims and the specification. Accordingly, the first member in the specification may be the second member in the claims.

It should be noted that, in the following embodiments, without departing from the spirit of the disclosure, features in several different embodiments may be replaced, reorganized, and mixed to complete other embodiments. As long as the features of the various embodiments do not violate the spirit of the disclosure or conflict each other, they may be mixed and matched arbitrarily.

The electrical connection described in the disclosure may both refer to direct connection or indirect connection. In the case of a direct connection, the terminals of elements on two circuits are connected directly or to each other by a conductor segment. In the case of indirect connection, there are switches, diodes, capacitors, inductors, other suitable elements, or a combination of the above elements between the terminals of the elements on the two circuits, but the disclosure is not limited thereto.

In the disclosure, the thickness, length, width, and area may be measured using an optical microscope, and the thickness may be measured using a cross-sectional image in an electron microscope, but the disclosure is not limited thereto. In addition, any two values or directions used for comparison may contain certain errors. If the first value is equal to the second value, it implies that there may be an error of about 10% between the first value and the second value; if the first direction is perpendicular to the second direction, the angle between the first direction and the second direction may be between 80 degrees and 100 degrees; if the first direction is parallel to the second direction, the angle between the first direction and the second direction may be between 0 degrees and 10 degrees.

The electronic device of the disclosure may be applied to a display device, a light-emitting device, a backlight device, an antenna device, a sensing device, or a tiling device, or a temporary storage substrate used to assist electronic units in being placed at a specific spacing, but the disclosure is not limited thereto. The electronic device may be a bendable or flexible electronic device. The display device may be a non-self-luminous display device or a self-luminous display device. The antenna device may be a liquid-crystal-type antenna device or a non-liquid-crystal-type antenna device, and the sensing device may be a sensing device sensing capacitance, light, heat energy, or ultrasonic wave, but the disclosure is not limited thereto. The electronic device may include electronic units such as a passive element and an active element, such as a capacitor, a resistor, an inductor, a diode, a transistor, etc. The diode may include a light-emitting diode (LED) or a photodiode. The LED may include, for example, an organic light-emitting diode (OLED), a mini LED, a micro LED, or a quantum dot LED, but the disclosure is not limited thereto. The tiling device may be, for example, a display tiling device or an antenna tiling device, but the disclosure is not limited thereto. It should be noted that the electronic device may be any arrangement and combination of the above, but the disclosure is not limited thereto. Moreover, the shape of the electronic device may be rectangular, circular, polygonal, a shape having a curved edge, or other suitable shapes.

1 FIG. is a schematic flowchart of a manufacturing method of a circular polarizer of the first embodiment of the disclosure.

1 FIG. 100 Referring to, in the present embodiment, a circular polarizermay be formed by performing the following steps, but the disclosure is not limited thereto.

1 In some embodiments, the plurality of patterned transparent patterns TP may be formed on the substrate SBby performing a yellow light process, a nanoimprint process, or other suitable processes, but the disclosure is not limited thereto.

1 1 1 1 1 The material of the substrate SBmay be, for example, glass, plastic, or a combination thereof. For example, the material of the substrate SBmay include quartz, sapphire, silicon (Si), germanium (Ge), silicon carbide (SiC), gallium nitride (GaN), silicon germanium (SiGe), polymethyl methacrylate (PMMA), polycarbonate (PC), polyimide (PI), polyethylene terephthalate (PET), or other suitable materials or a combination of the above materials. In the present embodiment, the material of the substrate SBis glass, but the disclosure is not limited thereto. The material of the plurality of patterned transparent patterns TP may be, for example, an organic material or an inorganic material. In the present embodiment, the difference between the refractive index of the plurality of patterned transparent patterns TP and the refractive index of the substrate SBis less than 1, so as to reduce the possibility of light being reflected by the interface between the patterned transparent patterns TP and the substrate SB. In addition, in the present embodiment, the adhesion between the surface of the plurality of patterned transparent patterns TP and a lyotropic liquid crystal is relatively poor, which is described in detail in the following embodiments.

100 110 120 130 100 In the present embodiment, the circular polarizerincludes a linear polarizing film, an intermediate layer, and a phase retardation filmstacked on each other. In some embodiments, the method of forming the circular polarizerincludes the following steps, but the disclosure is not limited thereto.

110 110 In the present embodiment, the material of the linear polarizing filmincludes a lyotropic liquid crystal LL and a dichroic dye. In some embodiments, the method of forming the linear polarizing filmincludes the following steps, but the disclosure is not limited thereto.

1 First, a coating process may be performed to form a lyotropic liquid-crystal composition on the substrate SB. The lyotropic liquid-crystal composition includes, for example, the lyotropic liquid crystal LL and a solvent. As described in the above embodiments, since the adhesion between the surface of the plurality of patterned transparent patterns TP and the lyotropic liquid crystal LL is relatively poor, the lyotropic liquid crystal LL in the lyotropic liquid-crystal composition is concentrated in the openings between adjacent patterned transparent patterns TP, and the solvent in the lyotropic liquid-crystal composition may be formed on the surface and in the openings of the plurality of patterned transparent patterns TP.

Then, the solvent in the lyotropic liquid-crystal composition may be removed by performing a suitable drying process, thereby forming the lyotropic liquid crystal LL located in the openings between adjacent patterned transparent patterns TP.

110 In some embodiments, the linear polarizing filmmay be formed by performing a suitable dyeing process to dye the lyotropic liquid crystal LL. The dichroic dye used in the dyeing process may include a suitable organic material, and the disclosure is not limited thereto.

110 110 110 1 2 1 110 2 110 At this point, the production of the linear polarizing filmis completed. Although the manufacturing method of the linear polarizing filmof the present embodiment is explained by taking the above method as an example, the manufacturing method of the linear polarizing film of the disclosure is not limited thereto. In the present embodiment, the linear polarizing filmmay include a functional region Rand a redundant region R. In detail, the functional region Ris defined as an area where the linear polarizing filmis disposed, and the redundant region Ris defined as an opening OP of the linear polarizing film.

120 120 110 120 120 110 120 110 In some embodiments, the intermediate layermay be formed in the opening by performing a suitable patterning process, so that the intermediate layeris stacked on the linear polarizing film, but the disclosure is not limited thereto. The material of the intermediate layermay be, for example, an organic material or an inorganic material. In the present embodiment, the difference between the refractive index of the intermediate layerand the refractive index of the linearly polarizing filmis less than 1 to reduce the possibility of light being reflected by the interface between the intermediate layerand the linear polarizing film.

130 1 130 130 120 130 120 130 120 In some embodiments, the forming method of the phase retardation filmmay be similar to the forming method of the lyotropic liquid crystal LL in step (2-1). Specifically, a coating process may be performed to form a lyotropic liquid-crystal composition on the substrate SB. Due to the characteristic that the adhesion between the surface of the patterned transparent patterns TP and the lyotropic liquid crystal is relatively poor, the lyotropic liquid crystal in the lyotropic liquid-crystal composition is concentrated in the openings between adjacent patterned transparent patterns TP. Then, the solvent in the lyotropic liquid-crystal composition is removed by performing a suitable drying process, thereby forming the phase retardation filmlocated in the openings between adjacent patterned transparent patterns TP, wherein the phase retardation filmis stacked on the intermediate layer. In the present embodiment, the difference between the refractive index of the phase retardation filmand the refractive index of the intermediate layeris less than 1 to reduce the possibility of light being reflected by the interface between the phase retardation filmand the intermediate layer.

100 100 At this point, the production of the circular polarizeris completed. Although the manufacturing method of the circular polarizerof the present embodiment is explained by taking the above method as an example, the manufacturing method of the circular polarizer of the disclosure is not limited thereto.

2 FIG. 2 FIG. 1 FIG. is a schematic flowchart of a manufacturing method of a circular polarizer of the second embodiment of the disclosure. It should be mentioned that, the embodiment ofmay adopt the reference numerals of the embodiment ofand a portion of the contents thereof, wherein the same or similar numerals are used to represent the same or similar elements and descriptions of the same technical contents are omitted.

2 FIG. 100 Referring to, in the present embodiment, the circular polarizermay be formed by performing the following steps, but the disclosure is not limited thereto.

1 In some embodiments, the plurality of patterned photoresists PR may be formed on the substrate SBby performing an exposure and development process, but the disclosure is not limited thereto. The material of the plurality of patterned photoresists PR may be, for example, a suitable organic material, and the disclosure is not limited thereto.

1 The rest of the description about the substrate SBis as provided in the above embodiments, and is not described again here.

100 110 120 130 100 In the present embodiment, the circular polarizerincludes the linear polarizing film, the intermediate layer, and the phase retardation filmstacked on each other. In some embodiments, the method of forming the circular polarizerincludes the following steps, but the disclosure is not limited thereto.

110 110 a a In the present embodiment, the material of the linear polarizing filmincludes the lyotropic liquid crystal LL and a dichroic dye. In some embodiments, the method of forming the linear polarizing filmincludes the following steps, but the disclosure is not limited thereto.

1 Step (2-1-1a): The Lyotropic Liquid Crystal LL is Formed on the Substrate SB.

1 First, a coating process may be performed to form a lyotropic liquid-crystal composition on the substrate SB, wherein the lyotropic liquid-crystal composition covers the plurality of patterned photoresists PR. The lyotropic liquid-crystal composition includes, for example, the lyotropic liquid crystal LL and a solvent.

Then, the solvent in the lyotropic liquid-crystal composition may be removed by performing a suitable drying process, thereby forming the lyotropic liquid crystal LL.

Step (2-1-2a): The Lyotropic Liquid Crystal LL is Dyed.

110 110 a a In some embodiments, the linear polarizing filmmay be formed by performing a suitable dyeing process to dye the lyotropic liquid crystal LL, wherein the linear polarizing filmcovers the plurality of patterned photoresists PR. The dichroic dye used in the dyeing process may include a suitable organic material, and the disclosure is not limited thereto.

110 110 a a At this point, the production of the linear polarizing filmis completed. Although the manufacturing method of the linear polarizing filmof the present embodiment is explained by taking the above method as an example, the manufacturing method of the linear polarizing film of the disclosure is not limited thereto.

120 110 120 120 110 120 110 a a a a a a a. In some embodiments, the intermediate layermay be formed on the linear polarizing filmby performing a deposition process, a coating process, or other suitable processes, but the disclosure is not limited thereto. The material of the intermediate layermay be, for example, an organic material or an inorganic material. In the present embodiment, the difference between the refractive index of the intermediate layerand the refractive index of the linearly polarizing filmis less than 1 to reduce the possibility of light being reflected by the interface between the intermediate layerand the linear polarizing film

130 1 130 120 130 120 130 120 a a a a a a a. In some embodiments, the forming method of the phase retardation filmmay be similar to the forming method of the lyotropic liquid crystal LL in step (2-1a). Specifically, a coating process may be performed to form a lyotropic liquid-crystal composition on the substrate SB. Then, a suitable drying process is performed to remove the solvent in the lyotropic liquid-crystal composition, thereby forming the phase retardation filmstacked on the intermediate layer. In the present embodiment, the difference between the refractive index of the phase retardation filmand the refractive index of the intermediate layeris less than 1 to reduce the possibility of light being reflected by the interface between the phase retardation filmand the intermediate layer

1 110 120 130 1 110 120 130 110 120 130 a a a a a a In some embodiments, the plurality of patterned photoresists PR may be separated from the substrate SBby performing a suitable stripping process to remove the plurality of patterned photoresists PR, but the disclosure is not limited thereto. It should be mentioned that, the linear polarizing film, the intermediate layer, and the phase retardation filmlocated above the plurality of patterned photoresists PR (the plurality of patterned photoresists PR are on the surface away from the substrate SB) are also removed together with the plurality of patterned photoresists PR in this step. Accordingly, a portion of the linear polarizing film, the intermediate layer, and the phase retardation filmare removed in this step to form the linear polarizing film, the intermediate layer, and the phase retardation filmrespectively.

100 100 At this point, the production of the circular polarizeris completed. Although the manufacturing method of the circular polarizerof the present embodiment is explained by taking the above method as an example, the manufacturing method of the circular polarizer of the disclosure is not limited thereto.

3 FIG. 3 FIG. 1 FIG. is a schematic flowchart of a manufacturing method of a circular polarizer of the third embodiment of the disclosure. It should be mentioned that, the embodiment ofmay adopt the reference numerals of the embodiment ofand a portion of the contents thereof, wherein the same or similar numerals are used to represent the same or similar elements and descriptions of the same technical contents are omitted.

3 FIG. 100 Referring to, in the present embodiment, the circular polarizermay be formed by performing the following steps, but the disclosure is not limited thereto.

100 110 120 130 100 In the present embodiment, the circular polarizerincludes the linear polarizing film, the intermediate layer, and the phase retardation filmstacked on each other. In some embodiments, the method of forming the circular polarizerincludes the following steps, but the disclosure is not limited thereto.

110 110 b b In the present embodiment, the material of the linear polarizing filmincludes the lyotropic liquid crystal LL and a dichroic dye. In some embodiments, the method of forming the linear polarizing filmincludes the following steps, but the disclosure is not limited thereto.

1 Step (2-1-1b): The Lyotropic Liquid Crystal LL is Formed on the Substrate SB.

1 First, a coating process may be performed to form a lyotropic liquid-crystal composition on the substrate SB. The lyotropic liquid-crystal composition includes, for example, the lyotropic liquid crystal LL and a solvent.

Then, the solvent in the lyotropic liquid-crystal composition may be removed by performing a suitable drying process, thereby forming the lyotropic liquid crystal LL.

Step (2-1-2b): The Lyotropic Liquid Crystal LL is Dyed.

110 b In some embodiments, the linear polarizing filmmay be formed by performing a suitable dyeing process to dye the lyotropic liquid crystal LL. The dichroic dye used in the dyeing process may include a suitable organic material, and the disclosure is not limited thereto.

110 110 b b At this point, the production of the linear polarizing filmis completed. Although the manufacturing method of the linear polarizing filmof the present embodiment is explained by taking the above method as an example, the manufacturing method of the linear polarizing film of the disclosure is not limited thereto.

120 110 120 120 110 120 110 b b b b b b b. In some embodiments, the intermediate layermay be formed on the linear polarizing filmby performing a deposition process, a coating process, or other suitable processes, but the disclosure is not limited thereto. The material of the intermediate layermay be, for example, an organic material or an inorganic material. In the present embodiment, the difference between the refractive index of the intermediate layerand the refractive index of the linearly polarizing filmis less than 1 to reduce the possibility of light being reflected by the interface between the intermediate layerand the linear polarizing film

130 1 130 120 130 120 130 120 b b b b b b b. In some embodiments, the forming method of the phase retardation filmmay be similar to the forming method of the lyotropic liquid crystal LL in step (2-1b). Specifically, a coating process may be performed to form a lyotropic liquid-crystal composition on the substrate SB. Then, a suitable drying process is performed to remove the solvent in the lyotropic liquid-crystal composition, thereby forming the phase retardation filmstacked on the intermediate layer. In the present embodiment, the difference between the refractive index of the phase retardation filmand the refractive index of the intermediate layeris less than 1 to reduce the possibility of light being reflected by the interface between the phase retardation filmand the intermediate layer

110 120 130 110 120 130 110 120 130 110 120 130 b b b b b b b b b In some embodiments, a portion of the linear polarizing film, the intermediate layer, and the phase retardation filmmay be removed by performing a suitable patterning process. For example, a portion of the linear polarizing film, the intermediate layer, and the phase retardation filmmay be removed by performing a laser etching process, but the disclosure is not limited thereto. Accordingly, a portion of the linear polarizing film, the intermediate layer, and the phase retardation filmis removed in this step to form the linear polarizing film, the intermediate layer, and the phase retardation filmrespectively.

100 100 At this point, the production of the circular polarizeris completed. Although the manufacturing method of the circular polarizerof the present embodiment is explained by taking the above method as an example, the manufacturing method of the circular polarizer of the disclosure is not limited thereto.

4 FIG. 4 FIG. 1 FIG. is a schematic flowchart of a manufacturing method of a circular polarizer of the fourth embodiment of the disclosure. It should be mentioned that, the embodiment ofmay adopt the reference numerals of the embodiment ofand a portion of the contents thereof, wherein the same or similar numerals are used to represent the same or similar elements and descriptions of the same technical contents are omitted.

4 FIG. 100 Referring to, in the present embodiment, a circular polarizer′ may be formed by performing the following steps, but the disclosure is not limited thereto.

100 110 120 130 100 In the present embodiment, the circular polarizer′ includes a linear polarizing film′, an intermediate layer′, and a phase retardation film′ stacked on each other. In some embodiments, the method of forming the circular polarizer′ includes the following steps, but the disclosure is not limited thereto.

110 110 In the present embodiment, the material of the linear polarizing film′ includes the lyotropic liquid crystal LL and a dichroic dye. In some embodiments, the method of forming the linear polarizing film′ includes the following steps, but the disclosure is not limited thereto.

1 Step (2-1-1c): The Lyotropic Liquid Crystal LL is Formed on the Substrate SB.

1 First, a coating process may be performed to form a lyotropic liquid-crystal composition on the substrate SB. The lyotropic liquid-crystal composition includes, for example, the lyotropic liquid crystal LL and a solvent.

Then, the solvent in the lyotropic liquid-crystal composition may be removed by performing a suitable drying process, thereby forming the lyotropic liquid crystal LL.

Step (2-1-2c): The Plurality of Patterned Photoresists PR are Formed on the Lyotropic Liquid Crystal LL.

1 In some embodiments, the plurality of patterned photoresists PR may be formed on the surface of the lyotropic liquid crystal LL away from the substrate SBby performing an exposure and development process, but the disclosure is not limited thereto. The material of the plurality of patterned photoresists PR may be, for example, a suitable organic material, and the disclosure is not limited thereto.

Step (2-1-3c): The Lyotropic Liquid Crystal LL Exposed by the Plurality of Patterned Photoresists PR is Dyed.

110 In some embodiments, the lyotropic liquid crystal LL may be dyed by performing a suitable dyeing process using the plurality of patterned photoresists PR to form the linear polarizing film′. The dichroic dye used in the dyeing process may include a suitable organic material, and the disclosure is not limited thereto.

110 112 114 112 1 114 Accordingly, in the present embodiment, the linear polarizing film′ includes an undyed area′ and a dyed area′, wherein the undyed area′ is overlapped with the plurality of patterned photoresists PR in a normal direction n of the substrate SB, and the dyed area′ is exposed by the plurality of patterned photoresists PR.

110 110 110 1 2 1 114 110 2 112 110 At this point, the production of the linear polarizing film′ is completed. Although the manufacturing method of the linear polarizing film′ of the present embodiment is explained by taking the above method as an example, the manufacturing method of the linear polarizing film of the disclosure is not limited thereto. In the present embodiment, the linear polarizing film′ may include the functional region Rand the redundant region R. In detail, the functional region Ris defined as the dyed area′ in the linear polarizing film′, and the redundant region Ris defined as the undyed area′ in the linear polarizing film′.

120 110 120 110 120 120 110 120 110 It is worth noting that before the intermediate layer′ is formed on the linear polarizing film′, the plurality of patterned photoresists PR are first removed. In some embodiments, the intermediate layer′ may be formed on the linear polarizing film′ by performing a deposition process, a coating process, or other suitable processes, but the disclosure is not limited thereto. The material of the intermediate layer′ may be, for example, an organic material or an inorganic material. In the present embodiment, the difference between the refractive index of the intermediate layer′ and the refractive index of the linearly polarizing film′ is less than 1 to reduce the possibility of light being reflected by the interface between the intermediate layer′ and the linear polarizing film′.

130 1 130 120 130 120 130 120 In some embodiments, the forming method of the phase retardation film′ may be similar to the forming method of the lyotropic liquid crystal LL in step (2-1-1c). Specifically, a coating process may be performed to form a lyotropic liquid-crystal composition on the substrate SB. Then, a suitable drying process is performed to remove the solvent in the lyotropic liquid-crystal composition, thereby forming the phase retardation film′ stacked on the intermediate layer′. In the present embodiment, the difference between the refractive index of the phase retardation film′ and the refractive index of the intermediate layer′ is less than 1 to reduce the possibility of light being reflected by the interface between the phase retardation film′ and the intermediate layer′.

100 100 At this point, the production of the circular polarizer′ is completed. Although the manufacturing method of the circular polarizer′ of the present embodiment is explained by taking the above method as an example, the manufacturing method of the circular polarizer of the disclosure is not limited thereto.

5 FIG. 5 FIG. 1 FIG. is a schematic flowchart of a manufacturing method of a circular polarizer of the fifth embodiment of the disclosure. It should be mentioned that, the embodiment ofmay adopt the reference numerals of the embodiment ofand a portion of the contents thereof, wherein the same or similar numerals are used to represent the same or similar elements and descriptions of the same technical contents are omitted.

5 FIG. 100 Referring to, in the present embodiment, the circular polarizermay be formed by performing the following steps, but the disclosure is not limited thereto.

2 1 2 3 1 2 3 2 5 FIG. In some embodiments, the plurality of electronic units EU may be disposed on the substrate SBby performing mass transfer, but the disclosure is not limited thereto. Any of the plurality of electronic units EU may, for example, emit light of various suitable colors (e.g., red light, green light, and blue light) or UV light, but the disclosure is not limited thereto. In some embodiments, the plurality of electronic units EU may include a self-luminous material. For example, in the present embodiment, the plurality of electronic units EU may be LEDs, including, for example, organic LEDs, micro LEDs, mini LEDs, quantum dot (QD) LEDs, or a combination thereof, but the disclosure is not limited thereto. In some embodiments, the plurality of electronic units EU may include a red light-emitting unit EU, a green light-emitting unit EU, and a blue light-emitting unit EU. That is, the red light-emitting unit EU, the green light-emitting unit EU, and the blue light-emitting unit EUmay respectively emit red light, green light, and blue light. However, the disclosure is not limited thereto. In other embodiments, each of the plurality of electronic units EU may emit blue light or UV light. In the present embodiment, the adhesion between the surface of the plurality of electronic units EU and a lyotropic liquid crystal is relatively poor, which is described in detail in the following embodiments. It is worth noting that, although not shown in, a circuit layer is disposed between the substrate SBand the plurality of electronic units EU, wherein the plurality of electronic units EU are electrically connected to the circuit layer.

2 2 2 The material of the substrate SBmay be, for example, glass, plastic, or a combination thereof. For example, the material of the substrate SBmay include quartz, sapphire, silicon (Si), germanium (Ge), silicon carbide (SiC), gallium nitride (GaN), silicon germanium (SiGe), polymethyl methacrylate (PMMA), polycarbonate (PC), polyimide (PI), polyethylene terephthalate (PET), or other suitable materials or a combination of the above materials. In the present embodiment, the material of the substrate SBis glass, but the disclosure is not limited thereto.

100 130 120 110 100 In the present embodiment, the circular polarizerincludes the phase retardation film, the intermediate layer, and the linear polarizing filmstacked on each other. In some embodiments, the method of forming the circular polarizerincludes the following steps, but the disclosure is not limited thereto.

2 130 In some embodiments, a coating process may be performed to form a lyotropic liquid-crystal composition on the substrate SB. Due to the characteristic that the adhesion between the surface of the plurality of electronic units EU and the lyotropic liquid crystal is relatively poor, the lyotropic liquid crystal in the lyotropic liquid-crystal composition is concentrated in the openings between adjacent electronic units EU. Then, a suitable drying process is performed to remove the solvent in the lyotropic liquid-crystal composition, thereby forming the phase retardation filmlocated in the openings between adjacent electronic units EU.

120 120 130 120 120 130 120 130 In some embodiments, the intermediate layermay be formed in the openings between adjacent electronic units EU by performing a suitable patterning process, so that the intermediate layeris stacked on the phase retardation film, but the disclosure is not limited thereto. The material of the intermediate layermay be, for example, an organic material or an inorganic material. In the present embodiment, the difference between the refractive index of the intermediate layerand the refractive index of the phase retardation filmis less than 1 to reduce the possibility of light being reflected by the interface between the intermediate layerand the phase retardation film.

110 110 In the present embodiment, the material of the linear polarizing filmincludes the lyotropic liquid crystal LL and a dichroic dye. In some embodiments, the method of forming the linear polarizing filmincludes the following steps, but the disclosure is not limited thereto.

2 Step (2-3-1d): The Lyotropic Liquid Crystal LL is Formed on the Substrate SB.

2 First, a coating process may be performed to form a lyotropic liquid-crystal composition on the substrate SB. The lyotropic liquid-crystal composition includes, for example, the lyotropic liquid crystal LL and a solvent. As described in the above embodiments, since the adhesion between the surface of the plurality of electronic units EU and the lyotropic liquid crystal LL is relatively poor, the lyotropic liquid crystal LL in the lyotropic liquid-crystal composition is concentrated in the openings between adjacent electronic units EU, and the solvent in the lyotropic liquid-crystal composition may be formed on the surface and in the openings of the plurality of electronic units EU.

Then, the solvent in the lyotropic liquid-crystal composition may be removed by performing a suitable drying process, thereby forming the lyotropic liquid crystal LL located in the openings between the plurality of adjacent electronic units EU.

Step (2-3-2d): The Lyotropic Liquid Crystal LL is Dyed.

110 110 120 110 120 In some embodiments, the linear polarizing filmmay be formed by performing a suitable dyeing process to dye the lyotropic liquid crystal LL. The dichroic dye used in the dyeing process may include a suitable organic material, and the disclosure is not limited thereto. In the present embodiment, the difference between the refractive index of the linear polarizing filmand the refractive index of the intermediate layeris less than 1 to reduce the possibility of light being reflected by the interface between the linear polarizing filmand the intermediate layer.

110 110 At this point, the production of the linear polarizing filmis completed. Although the manufacturing method of the linear polarizing filmof the present embodiment is explained by taking the above method as an example, the manufacturing method of the linear polarizing film of the disclosure is not limited thereto.

100 100 At this point, the production of the circular polarizeris completed. Although the manufacturing method of the circular polarizerof the present embodiment is explained by taking the above method as an example, the manufacturing method of the circular polarizer of the disclosure is not limited thereto.

100 100 110 110 1 2 1 2 100 100 In the manufacturing method of the circular polarizeror the circular polarizer′ provided in the above embodiments, the linear polarizing filmor the linear polarizing film′ is formed by drying and dyeing the lyotropic liquid-crystal composition. The lyotropic liquid-crystal composition may be patterned before or after drying to form the functional region Rand the redundant region Rrespectively; or after drying, the exposed area of the lyotropic liquid-crystal composition may be dyed using the plurality of patterned photoresists PR to form the functional region Rand the redundant region Rrespectively. Therefore, when the circular polarizeror the circular polarizer′ provided in the above embodiments is applied to an electronic device, the electronic device may reduce the reflection of light by the circuit layer, and the light extraction efficiency thereof may be improved. The description of the electronic device is introduced in the following embodiments.

6 FIG.A 6 FIG.A 1 FIG. is a partial cross-sectional schematic diagram of an electronic device of the first embodiment of the disclosure. It should be mentioned that, the embodiment ofmay adopt the reference numerals of the embodiment ofand a portion of the contents thereof, wherein the same or similar numerals are used to represent the same or similar elements and descriptions of the same technical contents are omitted.

6 FIG.A 10 1 100 2 a Please refer to. In the present embodiment, an electronic deviceincludes the substrate SB, the plurality of patterned transparent patterns TP, the circular polarizer, the substrate SB, a circuit layer CL, and the plurality of electronic units EU.

1 1 1 1 2 1 1 1 The substrate SBhas, for example, a first surface SB_Sand a second surface SB_Sopposite to the first surface SB_S. The rest of the description about the substrate SBis as provided in the above embodiments, and is not described again here.

1 1 1 The plurality of patterned transparent patterns TP are, for example, disposed on the first surface SB_Sof the substrate SB. In the present embodiment, there are openings between adjacent patterned transparent patterns TP. The rest of the description of the plurality of patterned transparent patterns TP is as provided in the above embodiments, and is not described again here.

100 1 1 1 100 100 110 120 130 110 1 1 1 120 110 1 130 120 110 The circular polarizeris, for example, disposed on the first surface SB_Sof the substrate SB, and is disposed, for example, in the openings of the plurality of patterned transparent patterns TP. Viewed from another perspective, the circular polarizeralso includes the openings OP. In the present embodiment, the circular polarizerincludes the linear polarizing film, the intermediate layer, and the phase retardation filmstacked on each other. In detail, the linear polarizing filmis, for example, disposed on the first surface SB_Sof the substrate SB, the intermediate layeris, for example, disposed on the surface of the linear polarizing filmaway from the substrate SB, and the phase retardation filmis, for example, disposed on the surface of the intermediate layeraway from the linear polarizing film.

110 110 1 2 110 1 2 1 110 2 110 The polarizing filmincludes, for example, lyotropic liquid crystal and dichroic dye. In the present embodiment, the linear polarizing filmincludes the functional region Rand the redundant region R. In detail, the linear polarizing filmincludes the functional region Rchanging light into linearly polarized light and the redundant region Rof the remaining regions, wherein the functional region Ris defined as an area where the linear polarizing filmis disposed, and the redundant region Ris defined as the openings OP of the linear polarizing film.

130 130 The phase retardation filmincludes, for example, lyotropic liquid crystal. In some embodiments, the phase retardation filmincludes a quarter-wave plate, but the disclosure is not limited thereto.

100 The rest of the description about the circular polarizeris as provided in the above embodiments, and is not described again here.

2 2 1 2 2 2 1 2 1 2 1 1 1 100 2 1 2 The substrate SBhas, for example, a first surface SB_Sand a second surface SB_Sopposite to the first surface SB_S. In the present embodiment, the first surface SB_Sof the substrate SBfaces the first surface SB_Sof the substrate SB. Therefore, the circular polarizeris disposed between the substrate SBand the substrate SB, but the disclosure is not limited thereto. The rest of the description about the substrate SBis as provided in the above embodiments, and is not described again here.

2 1 2 The circuit layer CL is, for example, disposed on the first surface SB_Sof the substrate SB. In some embodiments, the circuit layer CL may include a plurality of transistors (not shown), a plurality of wires (not shown), and a plurality of insulating layers (not shown), but the disclosure is not limited thereto.

2 The plurality of electronic units EU are, for example, disposed on the first surface of the substrate SBand electrically connected to the circuit layer CL, for example. In the present embodiment, the plurality of electronic units EU are light-emitting elements, but the disclosure is not limited thereto. The rest of the description about the plurality of electronic units EU is as provided in the above embodiments, and is not described again here.

2 1 2 2 110 1 110 2 2 110 110 10 a In the present embodiment, in the normal direction n of the first surface SB_Sof the substrate SB, the redundant region Rof the linear polarizing filmis overlapped with the plurality of electronic units EU, and the functional region Rof the linear polarizing filmis overlapped with the area of the substrate SBnot covered by the plurality of electronic units EU. Since the redundant region Rof the linear polarizing filmis the openings OP, the linear polarizing filmof the present embodiment may reduce the possibility of affecting the light emitted by the plurality of electronic units EU, thereby increasing the light extraction efficiency of the electronic deviceof the present embodiment.

10 1 2 1 2 10 1 2 a a In the present embodiment, the electronic devicefurther includes an adhesive layer AL. The adhesive layer AL is, for example, disposed between the substrate SBand the substrate SBso that the substrate SBand the substrate SBare adhered to each other. The adhesive layer AL may include, for example, optical clear resin (OCR) or optical clear adhesive (OCA). For example, the material of the adhesive layer AL may include acrylic resin, silicone resin, epoxy resin, or other suitable materials or a combination of the above materials, but the disclosure is not limited thereto. In other embodiments, the electronic devicedoes not need to include the adhesive layer AL. That is, an air gap is included between the substrate SBand the substrate SB.

6 FIG.B 6 FIG.B 6 FIG.A is a partial cross-sectional schematic diagram of an electronic device of the second embodiment of the disclosure. It should be mentioned that, the embodiment ofmay adopt the reference numerals of the embodiment ofand a portion of the contents thereof, wherein the same or similar numerals are used to represent the same or similar elements and descriptions of the same technical contents are omitted.

6 FIG.B 10 10 10 b a b Referring to, the main difference between an electronic deviceof the present embodiment and the electronic deviceis that the electronic deviceincludes a color filter layer CF and does not include the plurality of patterned transparent patterns TP.

10 1 1 1 2 1 2 1 2 3 1 2 3 2 1 2 10 10 a b b. In detail, the color filter layer CF is, for example, located at a location where the plurality of patterned transparent patterns TP are originally disposed in the electronic device. That is, the color filter layer CF is disposed on the first surface SB_Sof the substrate SB. The color filter layer CF includes, for example, a plurality of filter units, and the filter units are overlapped with corresponding electronic units EU on the first surface SB_Sof the substrate SB. Specifically, in the present embodiment, the color filter layer CF may include a red filter unit CF, a green filter unit CF, and a blue filter unit CFrespectively overlapped with the red light-emitting unit EU, the green light-emitting unit EU, and the blue light-emitting unit EUin the normal direction n of the first surface SB_Sof the substrate SB. Via the provision of the color filter layer CF, the ambient light irradiated to the electronic devicemay be further absorbed, thereby improving the ambient light contrast of the electronic device

6 FIG.C 6 FIG.B 6 FIG.C is a partial cross-sectional schematic diagram of an electronic device of the third embodiment of the disclosure. It should be mentioned that, the embodiment ofmay adopt the reference numerals of the embodiment ofand a portion of the contents thereof, wherein the same or similar numerals are used to represent the same or similar elements and descriptions of the same technical contents are omitted.

6 FIG.C 10 10 10 c b c Please refer to. The main difference between an electronic deviceof the present embodiment and the electronic deviceis that the electronic devicealso includes a light-shielding structure BM.

1 2 1 2 100 100 1 The light-shielding structure BM is, for example, disposed on the substrate SB, and overlapped with the circular polarizer in the normal direction n of the first surface SB_Sof the substrate SB. In the present embodiment, the light-shielding structure BM and the circular polarizerare stacked, and the circular polarizeris disposed between the light-shielding structure BM and the substrate SB. The light-shielding structure BM may, for example, include a light-shielding material. For example, the material of the light-shielding structure BM may include black resin or metal material having lower reflectivity, but the disclosure is not limited thereto.

6 FIG.D 6 FIG.D 6 FIG.C is a partial cross-sectional schematic diagram of an electronic device of the fourth embodiment of the disclosure. It should be mentioned that, the embodiment ofmay adopt the reference numerals of the embodiment ofand a portion of the contents thereof, wherein the same or similar numerals are used to represent the same or similar elements and descriptions of the same technical contents are omitted.

6 FIG.D 10 10 10 d b d Referring to, the main difference between an electronic deviceof the present embodiment and the electronic deviceis that the electronic devicealso includes a pixel definition layer PDL, a light conversion structure LS, and a scattering layer SC.

2 1 2 The pixel definition layer PDL is, for example, disposed on the first surface SB_Sof the substrate SB, and disposed between adjacent electronic units EU. In some embodiments, the pixel definition layer PDL may be used to define the placement position in each of the plurality of electronic units EU, but the disclosure is not limited thereto. The pixel definition layer PDL may include, for example, a transparent material, a reflective material, or a light-shielding material. For example, the material of the pixel definition layer PDL may include an organic photoresist, but the disclosure is not limited thereto.

1 1 1 3 The light conversion structure LS is, for example, disposed on the surface SB_Sof the substrate SB, and includes, for example, a barrier layer BANK, a wavelength conversion layer QDR, and a wavelength conversion layer QDG. In addition, in the present embodiment, each of the plurality of electronic units EU is a light-emitting unit emitting light of the same color. For example, each of the plurality of electronic units EU is the blue light-emitting unit EU, but the disclosure is not limited thereto.

100 2 1 2 100 1 The barrier layer BANK is overlapped with the corresponding circular polarizerin the normal direction n of the surface SB_Sof the substrate SB, for example. In the present embodiment, the circular polarizeris disposed between the barrier layer BANK and the substrate SB. The barrier layer BANK may, for example, include a suitable organic material or an inorganic material, and the disclosure is not limited thereto.

2 1 2 1 3 2 1 2 2 3 2 1 2 3 1 2 The wavelength conversion layer QDR and the wavelength conversion layer QDG are overlapped with the corresponding filter units, for example, in the normal direction n of the first surface SB_Sof the substrate SB, and are each stacked with the corresponding filter unit and light-emitting unit. In detail, in the present embodiment, the wavelength conversion layer QDR is overlapped with the red filter unit CFand the corresponding blue light-emitting unit EUin the normal direction n of the first surface SB_Sof the substrate SB, and the wavelength conversion layer QDG is overlapped with the green filter unit CFand the corresponding blue light-emitting unit EUin the normal direction n of the first surface SB_Sof the substrate SB. In some embodiments, the materials of the wavelength conversion layer QDR and the wavelength conversion layer QDG may each include a quantum dot material, a phosphorescent material, a fluorescent material, other suitable wavelength conversion materials, or a combination thereof. In other words, the wavelength conversion layer QDR and the wavelength conversion layer QDG may each convert the blue light emitted by the blue light-emitting unit EUinto light having another wavelength. In the present embodiment, the colors of the light having another wavelength converted by each of the wavelength conversion layer QDR and the wavelength conversion layer QDG may roughly correspond to the colors of the red filter unit CFand the green filter unit CF.

100 3 3 2 1 2 3 The scattering layer SC is also stacked, for example, with a corresponding circular polarizer. In the present embodiment, the scattering layer SCR is overlapped with the blue filter unit CFand the corresponding blue light-emitting unit EUin the normal direction n of the first surface SB_Sof the substrate SB. In some embodiments, the scattering layer SC may include an organic material and a titanium dioxide particle located therein to scatter the blue light emitted by the blue light-emitting unit EU, but the disclosure is not limited thereto.

6 FIG.E 6 FIG.E 6 FIG.C 6 FIG.D is a partial cross-sectional schematic diagram of an electronic device of the fifth embodiment of the disclosure. It should be mentioned that, the embodiment ofmay adopt the reference numerals of the embodiments ofandand a portion of the contents thereof, wherein the same or similar numerals are used to represent the same or similar elements and descriptions of the same technical contents are omitted.

6 FIG.E 10 10 10 e d e Please refer to. The main difference between an electronic deviceof the present embodiment and the electronic deviceis that the electronic devicealso includes the light-shielding structure BM. The description about the light-shielding structure BM is as provided in the above embodiments, and is not described again here.

7 FIG.A 7 FIG.A 6 FIG.A is a partial cross-sectional schematic diagram of an electronic device of the sixth embodiment of the disclosure. It should be mentioned that, the embodiment ofmay adopt the reference numerals of the embodiment ofand a portion of the contents thereof, wherein the same or similar numerals are used to represent the same or similar elements and descriptions of the same technical contents are omitted.

7 FIG.A 10 10 100 1 2 1 f e Referring to, the main difference between an electronic deviceof the present embodiment and the electronic deviceis that the plurality of patterned transparent patterns TP and the circular polarizerare disposed on the second surface SB_Sof the substrate SB.

7 FIG.B 7 FIG.B 7 FIG.A 6 FIG.C is a partial cross-sectional schematic diagram of an electronic device of the seventh embodiment of the disclosure. It should be mentioned that, the embodiment ofmay adopt the reference numerals of the embodiments ofandand a portion of the contents thereof, wherein the same or similar numerals are used to represent the same or similar elements and descriptions of the same technical contents are omitted.

7 FIG.B 10 10 10 1 1 1 g f g Referring to, the main difference between an electronic deviceof the present embodiment and the electronic deviceis that the electronic devicefurther includes the color filter layer CF and the light-shielding structure BM disposed on the first surface SB_Sof the substrate SB. The description about the color filter layer CF and the light-shielding structure BM is as provided in the above embodiments, and is not described again here.

7 FIG.C 7 FIG.C 7 FIG.B 6 FIG.E is a partial cross-sectional schematic diagram of an electronic device of the eighth embodiment of the disclosure. It should be mentioned that, the embodiment ofmay adopt the reference numerals of the embodiments ofandand a portion of the contents thereof, wherein the same or similar numerals are used to represent the same or similar elements and descriptions of the same technical contents are omitted.

7 FIG.C 10 10 10 1 1 1 2 1 2 h g h Referring to, the main differences between an electronic deviceof the present embodiment and the electronic deviceis that the electronic devicefurther includes the light conversion structure LS and the scattering layer SC disposed on the first surface SB_Sof the substrate SB, and further includes the pixel definition layer PDL disposed on the first surface SB_Sof the substrate SB. The description of the light conversion structure LS, the scattering layer SC, and the pixel definition layer PDL is as provided in the above embodiments and is not described again here.

8 FIG.A 8 FIG.A 6 FIG.A 5 FIG. is a partial cross-sectional schematic diagram of an electronic device of the ninth embodiment of the disclosure. It should be mentioned that, the embodiment ofmay adopt the reference numerals of the embodiments ofandand a portion of the contents thereof, wherein the same or similar numerals are used to represent the same or similar elements and descriptions of the same technical contents are omitted.

8 FIG.A 10 10 10 100 2 1 2 i a i Please refer to. In the present embodiment, the main difference between an electronic deviceof the present embodiment and the electronic deviceis that the electronic devicedoes not include the plurality of patterned transparent patterns TP, and the circular polarizeris disposed on the first surface SB_Sof the substrate SB.

10 i In the present embodiment, the electronic devicefurther includes an underfill UF. The underfill UF is, for example, disposed on the circuit layer CL and covers the electronic units EU, for example, to protect the circuit layer CL and/or the electronic units EU. In addition, the underfill UF, for example, is filled in the openings between adjacent electronic units EU, for example, to fix the electronic units EU, but the disclosure is not limited thereto. The material of the underfill UF may include, for example, an optical clear resin. For example, the material of the underfill UF may include silicone resin, epoxy resin, or other suitable materials, or a combination of the above materials, but the disclosure is not limited thereto.

100 8 FIG.B 8 FIG.B 8 FIG.A 6 FIG.C Accordingly, the circular polarizerof the present embodiment is disposed on the underfill UF and located between adjacent electronic units EU.is a partial cross-sectional schematic diagram of an electronic device of the tenth embodiment of the disclosure. It should be mentioned that, the embodiment ofmay adopt the reference numerals of the embodiment ofandand a portion of the contents thereof, wherein the same or similar numerals are used to represent the same or similar elements and descriptions of the same technical contents are omitted.

8 FIG.B 10 10 10 1 1 1 j i j Referring to, in the present embodiment, the main difference between an electronic deviceof the present embodiment and the electronic deviceis that the electronic devicefurther includes the color filter layer CF and the light-shielding structure BM disposed on the first surface SB_Sof the substrate SB. The description about the color filter layer CF and the light-shielding structure BM is as provided in the above embodiments, and is not described again here.

In addition, in the present embodiment, the underfill UF is disposed on the circuit layer CL and located in the openings between adjacent electronic units EU, wherein the height of the top surface of the underfill UF is lower than the height of the top surface of the electronic units EU, but the disclosure is not limited thereto.

100 Accordingly, the circular polarizerof the present embodiment is disposed on the underfill UF and located between adjacent electronic units EU.

8 FIG.C 8 FIG.C 8 FIG.A 6 FIG.D is a partial cross-sectional schematic diagram of an electronic device of the eleventh embodiment of the disclosure. It should be mentioned that, the embodiment ofmay adopt the reference numerals of the embodiments ofandand a portion of the contents thereof, wherein the same or similar numerals are used to represent the same or similar elements and descriptions of the same technical contents are omitted.

8 FIG.C 10 10 10 2 1 2 k i k Referring to, in the present embodiment, the main difference between an electronic deviceof the present embodiment and the electronic deviceis that the electronic devicefurther includes the pixel definition layer PDL disposed on the first surface SB_Sof the substrate SB.

100 2 2 In the present embodiment, the pixel definition layer PDL is disposed in the openings between adjacent electronic units EU and located between the circular polarizerand the substrate SBin the normal direction n of the substrate SB. The description about the pixel definition layer PDL is as provided in the above embodiments, and is not described again here.

8 FIG.C 8 FIG.C 100 130 100 120 110 130 In addition, in the present embodiment, the underfill UF covers the electronic units EU and is filled in the gaps between adjacent electronic units EU and the pixel definition layer PDL. In detail, the underfill UF may have the shape of a three-sided square in the cross-sectional view ofto cover the electronic units EU. The height of the top surface of the underfill UF is, for example, lower than the height of the top surface of the pixel definition layer PDL, thereby exposing a portion of the side surface of the pixel definition layer PDL. In the present embodiment, the circular polarizeris disposed on the exposed portion of the pixel definition layer PDL. In detail, the phase retardation filmof the circular polarizermay have the shape of a three-sided square in the cross-sectional view ofto cover the exposed portion of the pixel definition layer PDL, and the intermediate layerand the linear polarizing filmare sequentially disposed on the phase retardation film.

8 FIG.D 8 FIG.D 8 FIG.C 8 FIG.B is a partial cross-sectional schematic diagram of an electronic device of the twelfth embodiment of the disclosure. It should be mentioned that, the embodiment ofmay adopt the reference numerals of the embodiments ofandand a portion of the contents thereof, wherein the same or similar numerals are used to represent the same or similar elements and descriptions of the same technical contents are omitted.

8 FIG.D 10 10 10 1 1 1 l k l Referring to, in the present embodiment, the main difference between an electronic deviceof the present embodiment and the electronic deviceis that the electronic devicefurther includes the color filter layer CF and the light-shielding structure BM disposed on the first surface SB_Sof the substrate SB. The description about the color filter layer CF and the light-shielding structure BM is as provided in the above embodiments, and is not described again here.

100 130 100 120 110 130 8 FIG.D In addition, in the present embodiment, the underfill UF is disposed on the circuit layer CL and located in the gaps between adjacent electronic units EU and the pixel definition layer PDL. The height of the top surface of the underfill UF is, for example, lower than the height of the top surface of the pixel definition layer PDL, thereby exposing a side surface of a portion of the pixel definition layer PDL. In the present embodiment, the circular polarizeris disposed on a portion of the pixel definition layer PDL exposed by the underfill UF. In detail, the phase retardation filmof the circular polarizermay have the shape of a three-sided square in the cross-sectional view ofto cover the exposed portion of the pixel definition layer PDL, and the intermediate layerand the linear polarizing filmare sequentially disposed on the phase retardation film.

Based on the above, the linear polarizing film in the circular polarizer included in the electronic device of some embodiments of the disclosure has the functional region and the redundant region, wherein the functional region is overlapped with the area not covered by the plurality of electronic units, and the redundant region is overlapped with the plurality of electronic units. The functional region of the linear polarizing film has the function of linearly polarizing light, and the redundant region of the linear polarizing film may reduce the impact on the light emitted by the plurality of electronic units. Via the arrangement of the circular polarizer, the functional region is not overlapped with the plurality of electronic units. Therefore, the light extraction efficiency of the electronic device of some embodiments of the disclosure may be improved, and the reflection of light by the circuit layer may be reduced.

Furthermore, the manufacturing method of the electronic device of some embodiments of the disclosure provides a novel forming method of the circular polarizer forming the linear polarizing film by drying and dyeing the lyotropic liquid-crystal composition. The lyotropic liquid-crystal composition may be patterned before or after drying to form the functional region and the redundant region respectively; or after drying, the exposed area of the lyotropic liquid-crystal composition may be dyed using the plurality of patterns to form the functional region and the redundant region respectively. Therefore, via the forming method of the circular polarizer, the electronic device manufactured via the manufacturing method of the electronic device of some embodiments of the disclosure may reduce the reflection of light by the circuit layer, and the light extraction efficiency thereof may be improved.